Essay structure

[Anna232]

At 4:42 the teacher explains that it is important to think about main ideas and when he explains how to end the essay he points to main ideas he mentioned earlier.
At 15:09 the teacher says "Can you see how I repeated my main idea one and two?"

If I have more than two paragraphs in my essay, with a topic sentence in each paragraph, when I write the conclusion should I choose main ideas only from the first paragraph?
Is the teacher talking about the main ideas in the first screenshot?

 

[emsr2d2]

At 4:42, the teacher explains that it is important to think about main ideas and, when he explains how to end the essay, he points to the main ideas he mentioned earlier.

At 15:09, the teacher says "Can you see how I repeated my main idea one and my main idea two?"

If I have more than two paragraphs in my essay, with a topic sentence in each paragraph, when I write the conclusion should I choose the main ideas only from the first paragraph?
Is the teacher talking about the main ideas in the first screenshot?